2 syllables:
blocks in, boksen, box in, broxson, clocks in, coxen, coxon, dockson, fox in, locsin, moxon, noxon, oxen, rocks in, roxanne, shocks in, stocks in, talks in, tocsin, toxin, toxine, wachsen, walks in, woxen

3 syllables:
alloxan, centoxin, crotoxin, cytoxan, desoxyn, digoxin, dioxan, dioxin, dioxine, eltroxin, erwachsen, gitoxin, lanoxin, linoxin, linoxyn, mefoxin, naproxen, rhizoxin, suboxone, thyroxin, wilcoxen, wilcoxon, zhaoxin, zootoxin

4 syllables:
aflatoxin, amatoxin, anatoxin, anatoxine, antitoxin, antitoxine, apitoxin, autotoxin, baptitoxine, biotoxin, brevetoxin, bufotoxin, bungarotoxin, caramboxin, cicutoxin, ciguatoxin, cortodoxone, cytotoxin, difenoxin, digitoxin, endotoxin, ergotoxine, exotoxin, ferredoxin, flavodoxin, genotoxin, gerontoxon, gliotoxin, hemotoxin, latrotoxin, lymphotoxin, maitotoxin, mycotoxin, mydatoxin, myotoxin, necrotoxin, nephrotoxin, neurotoxin, ochratoxin, palytoxin, paraoxon, peptotoxine, phallotoxin, phytotoxin, picrotoxin, pyrotoxin, rubratoxin, rubredoxin, sapotoxin, saxitoxin, sitotoxin, spermatoxin, tinyatoxin, typhotoxin, tyrotoxine, vincetoxin, vomitoxin

5 syllables:
batrachotoxin, charybdotoxin, cyanotoxin, embryotoxin, enterotoxin, excitotoxin, grayanotoxin, hepatotoxin, ichthyotoxin, immunotoxin, poneratoxin, staphylotoxin, tetrodotoxin, thioredoxin, urechitoxin

6 syllables:
anaphylatoxin, anaphylotoxin, andromedotoxin, autocytotoxin, bacteriotoxin, botulismotoxin, podophyllotoxin, toxin-antitoxin, toxin antitoxin

7 syllables:
buprenorphine/naloxone, resiniferatoxin

8 syllables:
oxycodone/naloxone

2 syllables:
dobson, auction, godson, option, opsin

3 syllables:
put option, stock option, rhodopsin, concoction, adoption, decoction, call option, co-option

4 syllables:
naked option, covered option, local option, default option

5 syllables:
incentive option

6 syllables:
incentive stock option